73•15+40032:x=1512
=1095+40032:x=1512
40032:x=1512-1095
40032:x=417
x=40032:417
x=96
(102:x-47:x):5=11
102:x-47:x=11•5
102:x-47:x=55
scoatem factor comun pe x
(102-47):x=55
55:x=55
x=55:55
×=1
(144:x-4):2-3=1
facem prin metoda mersului invers
(144:x-4):2=1+3
(144:x-4):2=4
144:x-4=4•2
144:x-4=8
144:x=8+4
144:x=12
x=144:12
x=12
(144:x-4):2-222:74=1
facem prin metoda mersului invers
(144:x-4):2-3=1
(144:x-4):2=1+3
(144:x-4):2=4
144:x-4=4•2
144:x-4=8
144:x=8+4
144:x=12
x=144:12
x=12
312:(x+5)=24
x+5=312:24
x+5=13
x=13-5
x=8
(37:x+83:x):2=15
37:x+83:x=15•2
37:x+83:x=30
scoatem factor comun pe x
(37+83):x=30
120:x=30
x=120:30
x=4
155:(11+480:x)=5
11+480:x=155:5
11+480:x=31
480:x=31-11
480:x=20
x=480:20
x=24
Sper ca te-am ajutat!